This axe was owned by some brute or another that liked people to think he was unarmed… or perhaps liked to sneak it into places where weapons were forbidden. Since a lot of templars search for metal, it can be assumed that this being made out of some wood allows it to escape some forms of detection.

An invisible, wooden axe plus 2. Still has the negative modifiers of being made of wood and not steel.

It will cast a shadow.